Surveillance After Treatment of Barrett's Esophagus Benefits Those With High-Grade Dysplasia or Intramucosal Cancer Most.

Endoscopic surveillance after successful ablation of baseline HGD or intramucosal cancer is much more effective than surveillance after successful treatment of baseline LGD in averting invasive adenocarcinoma. Although the modest benefits of surveillance for treated LGD may be greater than the risks for patients at average risk for adverse effects of endoscopy, clinicians should concentrate on retaining patients with baseline HGD or cancer in endoscopic surveillance programs.